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87 lines
3.5 KiB
JavaScript
87 lines
3.5 KiB
JavaScript
/*****************************************************************************
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* Open MCT Web, Copyright (c) 2014-2015, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT Web is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT Web includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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/*global define*/
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define(
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[],
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function () {
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"use strict";
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/**
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* A PlotAxis provides a template-ready set of options
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* for the domain or range axis, sufficient to populate
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* selectors.
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*
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* @constructor
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* @param {string} axisType the field in metadatas to
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* look at for axis options; usually one of
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* "domains" or "ranges"
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* @param {object[]} metadatas metadata objects, as
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* returned by the `getMetadata()` method of
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* a `telemetry` capability.
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* @param {object} defaultValue the value to use for the
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* active state in the event that no options are
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* found; should contain "name" and "key" at
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* minimum.
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*
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*/
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function PlotAxis(axisType, metadatas, defaultValue) {
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var keys = {},
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options = [];
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// Look through all metadata objects and assemble a list
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// of all possible domain or range options
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function buildOptionsForMetadata(m) {
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(m[axisType] || []).forEach(function (option) {
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if (!keys[option.key]) {
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keys[option.key] = true;
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options.push(option);
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}
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});
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}
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(metadatas || []).forEach(buildOptionsForMetadata);
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// Plot axis will be used directly from the Angular
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// template, so expose properties directly to facilitate
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// two-way data binding (for drop-down menus)
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return {
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/**
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* The set of options applicable for this axis;
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* an array of objects, where each object contains a
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* "key" field and a "name" field (for machine- and
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* human-readable names respectively)
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*/
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options: options,
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/**
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* The currently chosen option for this axis. An
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* initial value is provided; this will be updated
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* directly form the plot template.
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*/
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active: options[0] || defaultValue
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};
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}
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return PlotAxis;
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}
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); |